Equipment
Dew remover
To avoid dew and frost from sticking on the scopes lens I uses this homemade dew remover. Three or more 22Homs, 2Watts resistors are connected to a 12V battery and wrapped around the lens to heat. This setup allows me to heat three lens with a single battery. To heat the lens of the guiding scope I use a set of six 7.5Homs resistors.